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david robben (1) [Avatar] Offline
in the ,why do you make the datamat become 100*3,as we know there are two features in the testSet.txt. you make it three features by adding a float 1.0 as the first.can we just use a 100*2 dataset.?
peter.harrington (82) [Avatar] Offline
Re: chapter five logistic regression:a small question
There actually are three features: X2, X1, and X0. X0 is the a constant value.